Trace number 1626817

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08Signal 7.68783 7.7009

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S305156909-031.cnf
MD5SUM94fbc938c49a6d0bc295232a6f2b8a2c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.5083
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.00/0.01	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 5 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1525 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.412
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 161 duplicate clauses
0.00/0.01	c resolvent_look() :: found 90 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1615 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1615 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1615 / 360 ) = 4.49
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 154 JD: 15
0.05/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 1113 JD: 15
0.39/0.40	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 2 NC: 3952 JD: 15
1.39/1.40	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 3 NC: 11068 JD: 15
3.89/3.97	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1626817-1240139945/watcher-1626817-1240139945 -o /tmp/evaluation-result-1626817-1240139945/solver-1626817-1240139945 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1626817-1240139945.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.98 0.98 0.99 3/64 24262
/proc/meminfo: memFree=1274392/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=792 CPUtime=0
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 42021886 811008 102 1992294400 134512640 135019032 4294956240 18446744073709551615 134554786 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 198 102 52 123 0 73 0

[startup+0.0548581 s]
/proc/loadavg: 0.98 0.98 0.99 3/64 24262
/proc/meminfo: memFree=1274392/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1092 CPUtime=0.05
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 225 0 0 0 5 0 0 0 18 0 1 0 42021886 1118208 208 1992294400 134512640 135019032 4294956240 18446744073709551615 134538152 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 273 208 73 123 0 148 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1092

[startup+0.101863 s]
/proc/loadavg: 0.98 0.98 0.99 3/64 24262
/proc/meminfo: memFree=1274392/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1092 CPUtime=0.1
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 231 0 0 0 10 0 0 0 18 0 1 0 42021886 1118208 214 1992294400 134512640 135019032 4294956240 18446744073709551615 134542659 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 273 214 73 123 0 148 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1092

[startup+0.301879 s]
/proc/loadavg: 0.98 0.98 0.99 3/64 24262
/proc/meminfo: memFree=1274392/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1224 CPUtime=0.3
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 241 0 0 0 30 0 0 0 19 0 1 0 42021886 1253376 224 1992294400 134512640 135019032 4294956240 18446744073709551615 134580086 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 306 224 73 123 0 181 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1224

[startup+0.701917 s]
/proc/loadavg: 0.98 0.98 0.99 3/64 24262
/proc/meminfo: memFree=1274392/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1224 CPUtime=0.69
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 248 0 0 0 69 0 0 0 23 0 1 0 42021886 1253376 231 1992294400 134512640 135019032 4294956240 18446744073709551615 134538045 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 306 231 73 123 0 181 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1224

[startup+1.50199 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273744/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1224 CPUtime=1.49
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 259 0 0 0 149 0 0 0 25 0 1 0 42021886 1253376 242 1992294400 134512640 135019032 4294956240 18446744073709551615 134542988 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 306 242 73 123 0 181 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1224

[startup+3.10113 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273552/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1356 CPUtime=3.09
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 278 0 0 0 309 0 0 0 25 0 1 0 42021886 1388544 261 1992294400 134512640 135019032 4294956240 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 339 261 73 123 0 214 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1356

[startup+6.30243 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273296/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1492 CPUtime=6.28
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 315 0 0 0 628 0 0 0 25 0 1 0 42021886 1527808 298 1992294400 134512640 135019032 4294956240 18446744073709551615 134542363 0 0 4096 0 0 0 0 17 1 0 0
/proc/24262/statm: 373 298 73 123 0 248 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1492

Solver just ended. Dumping a history of the last processes samples

[startup+7.1015 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273248/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1492 CPUtime=7.08
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 319 0 0 0 708 0 0 0 25 0 1 0 42021886 1527808 302 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 373 302 73 123 0 248 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 1492

[startup+7.50153 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273248/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1492 CPUtime=7.48
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 321 0 0 0 748 0 0 0 25 0 1 0 42021886 1527808 304 1992294400 134512640 135019032 4294956240 18446744073709551615 134596372 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 373 304 73 123 0 248 0
Current children cumulated CPU time (s) 7.48
Current children cumulated vsize (KiB) 1492

[startup+7.60154 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 24263
/proc/meminfo: memFree=1273248/2055920 swapFree=4192956/4192956
[pid=24262] ppid=24260 vsize=1492 CPUtime=7.58
/proc/24262/stat : 24262 (march_ks) R 24260 24262 24151 0 -1 4194304 322 0 0 0 758 0 0 0 25 0 1 0 42021886 1527808 305 1992294400 134512640 135019032 4294956240 18446744073709551615 134577485 0 0 4096 0 0 0 0 17 0 0 0
/proc/24262/statm: 373 305 73 123 0 248 0
Current children cumulated CPU time (s) 7.58
Current children cumulated vsize (KiB) 1492

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 7.7009
CPU time (s): 7.68783
CPU user time (s): 7.67883
CPU system time (s): 0.008998
CPU usage (%): 99.8303
Max. virtual memory (cumulated for all children) (KiB): 1492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.67883
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 356
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 44

runsolver used 0.014997 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-19 13:19:05
IDJOB=1626817
IDBENCH=70643
IDSOLVER=582
FILE ID=node55/1626817-1240139945
PBS_JOBID= 9157867
Free space on /tmp= 66376 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S305156909-031.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1626817-1240139945/watcher-1626817-1240139945 -o /tmp/evaluation-result-1626817-1240139945/solver-1626817-1240139945 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1626817-1240139945.cnf            

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 94fbc938c49a6d0bc295232a6f2b8a2c
RANDOM SEED=2144804571

node55.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.240
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1274936 kB
Buffers:         81100 kB
Cached:         619912 kB
SwapCached:          0 kB
Active:         351140 kB
Inactive:       363800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1274936 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2968 kB
Writeback:           0 kB
Mapped:          23688 kB
Slab:            52120 kB
Committed_AS:   173976 kB
PageTables:       1360 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66372 MiB
End job on node55 at 2009-04-19 13:19:13